Home / 210,997.20-316,473.90-111,116.94

Finding the Fourth Proportional to 210,997.20, 316,473.90 and 111,116.94

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Solution

The fourth proportional to 210,997.20, 316,473.90 and 111,116.94 is: 166,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,997.20 : 316,473.90 = 111,116.94 : x
  2. Step 2: Convert to fraction form
    210,997.20/316,473.90 = 111,116.94/x
  3. Step 3: Cross multiply
    210,997.20x = 316,473.90 × 111,116.94
  4. Step 4: Simplify right side
    210,997.20x = 35,165,611,357.87
  5. Step 5: Solve for x
    x = 35,165,611,357.87/210,997.20
  6. Step 6: Final answer
    x = 166,663.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.